Scikit-multiflow

Please refer to the corresponding [changelog entry](https://scikit-multiflow.github.io/scikit-multiflow/whats_new.htmlversion-0-3-0) for detailed information.

New features
* Additive Expert ensemble ([AddExp](https://scikit-multiflow.github.io/scikit-multiflow/_autosummary/skmultiflow.meta.additive_expert_ensemble.htmlmodule-skmultiflow.meta.additive_expert_ensemble)) [[paper](https://dl.acm.org/citation.cfm?id=1102408)]
* Dynamic Weighted Majority Ensemble ([DWE](https://scikit-multiflow.github.io/scikit-multiflow/_autosummary/skmultiflow.meta.dynamic_weighted_majority.htmlmodule-skmultiflow.meta.dynamic_weighted_majority)) [[paper](http://www.jmlr.org/papers/volume8/kolter07a/kolter07a.pdf)]

Misc
* Remove `Python 3.4` from list of supported versions as it has reached its `end-of-life` date
* Misc bug fixes

New methods

* Accuracy Weighted Ensemble classifier ([paper](https://dl.acm.org/citation.cfm?id=956778))

Misc

* Improvements and bug fixes in drift detection methods
* Improved examples/documentation for docker image
* Misc bug fixes

New methods
* Learn++.NSE classifier ([paper](https://ieeexplore.ieee.org/document/5975223))
* Naive Bayes (incremental)
* Hoeffding Anytime Tree or Extremely Fast Decision Tree ([paper](https://dl.acm.org/citation.cfm?id=3219819.3220005))

Misc
* Minor performance improvements
* Misc bug fixes

New methods
- Learn++ classifier ([paper](https://ieeexplore.ieee.org/document/983933))

Misc
- Improve performance of evaluators when saving all predictions into a file
- Misc bug fixes

Initial (minor) release of `scikit-multiflow`.

From this point the `scikit-multiflow` will also be available via [PyPI](https://pypi.org/project/scikit-multiflow/)